<?php

class Common {

    public $param;
    public function check() {
        $this->param['app_id'] = $app_id = isset($_POST['app_id']) ? $_POST['app_id'] : '';
        $this->param['version_id'] = $version_id = isset($_POST['version_id']) ? $_POST['version_id'] : '';
        $this->param['version_mini'] = $version_mini = isset($_POST['version_mini']) ? $_POST['version_mini'] : '';
        $this->param['did'] = $did = isset($_POST['did']) ? $_POST['did'] : '';
        $this->param['encrypt_did'] = $encrypt_did = isset($_POST['encrypt_did']) ? $_POST['encrypt_did'] : '';



    }



}